InterGlobe Aviation Limited (IndiGo) reported an 18.9% reduction in greenhouse gas (GHG) emission intensity per available seat kilometer for FY26 compared to its FY2016 baseline, driven by significant fleet modernization and operational efficiencies. The carrier filed its Business Responsibility and Sustainability Report (BRSR) on July 28, 2026, disclosing that it inducted 51 Airbus A320neo family aircraft during the year, which are 15% more fuel-efficient than previous generations. These next-generation aircraft now constitute 81% of the total fleet, serving as the primary lever for decarbonization while also reducing noise pollution by 50%. This progress is critical for IndiGo as it navigates evolving climate regulations such as CORSIA and potential Sustainable Aviation Fuel (SAF) mandates, which pose both compliance costs and opportunities for long-term efficiency gains.

The disclosure was made in compliance with Regulation 34 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015. An Independent Assurance Statement on the BRSR core disclosures was provided by TUV India Private Limited, confirming that the nine key performance indicators (KPIs) were prepared in accordance with SEBI’s BRSR Core framework. The assurance engagement followed ISAE 3000 (Revised) standards, covering environmental metrics such as energy consumption, water usage, and waste management across IndiGo’s domestic operations.

Operational and Environmental Metrics

IndiGo’s sustainability strategy focuses on three pillars: fleet optimization, flying standard operating procedures (SOPs), and ground electrification. The airline utilizes single-engine taxiing, optimal flap settings, and advanced flight planning to minimize fuel burn. On the ground, the company is increasing the share of electric Ground Service Equipment (GSE), including electric coaches and baggage loaders. Ahmedabad and Thiruvananthapuram stations now operate with 100% electric coaches, while Delhi uses a mix of electric and CNG coaches.

Note: Scope 3 emissions include indirect emissions from value chain activities. The values for FY25 have been restated to align with updated computational methodologies from the International Aviation Environment Group 2025 and DEFRA.

Workforce and Governance

As of March 31, 2026, IndiGo employed 45,051 individuals, comprising 41,907 permanent employees and 3,144 non-permanent staff. Women constitute 46.6% of the total workforce, reflecting the company’s focus on diversity, equity, and inclusion (DEI). The Board of Directors includes one woman, representing 11.1% of the board composition. The company reported a turnover rate of 20.2% for permanent employees in FY26, down from 23.0% in the previous year, indicating improved retention.

Governance oversight for sustainability issues is handled by the Risk Management Committee and the Corporate Social Responsibility Committee. Mr. Rahul Bhatia, Managing Director, assumed interim responsibility for business policy implementation following the resignation of CEO Pieter Elbers on March 10, 2026. The company maintains a robust safety management system compliant with Directorate General of Civil Aviation (DGCA) requirements, reporting zero fatalities and zero permanent disabilities among employees and workers during the fiscal year.

What the Numbers Show

The data reveals a strategic decoupling of growth from carbon intensity. While IndiGo expanded its fleet by inducting 51 new aircraft, the GHG emission intensity per available seat kilometer decreased significantly against the 2016 baseline. This suggests that the capital expenditure on newer, more efficient technology is yielding operational savings in fuel costs, which remains the largest cost component for airlines. However, the rise in Total Scope 3 emissions from 2,775,516 to 3,003,388 metric tonnes of CO2e indicates that absolute indirect emissions are growing alongside network expansion, even as intensity metrics improve. This highlights the challenge of managing upstream and downstream supply chain impacts as the airline scales its domestic and international presence across 34 states/UTs and 28 countries.

InterGlobe Aviation reported a consolidated net loss of ₹23,936 million for the financial year ended March 31, 2026 (FY26), reversing the ₹72,584 million profit recorded in FY25. The deterioration in profitability was largely attributed to a sharp depreciation of the Indian rupee, which resulted in a foreign exchange loss of ₹89,757 million, compared to ₹16,179 million in the previous year. Additionally, the company recognized exceptional items amounting to ₹17,964 million, comprising provisions for new labour codes and costs associated with operational disruptions in December 2025.

Despite the bottom-line pressure, the airline demonstrated resilience in its top-line growth. Total income increased by 6.4% to ₹895,134 million, while revenue from operations rose by 5.1% to ₹850 billion. This growth was supported by a 4% year-on-year increase in passenger traffic, with over 123 million customers served during the year. The company maintained a robust passenger load factor of 84.4%, reflecting strong demand across its domestic and international network.

The Board of Directors has not recommended any dividend for FY26, citing the need to conserve capital amidst challenging macroeconomic conditions and ongoing fleet expansion plans. In compliance with Regulation 43A of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, the Board reviewed and revised the Dividend Distribution Policy to provide a structured framework for future capital allocation decisions.

Operationally, IndiGo expanded its global footprint by launching long-haul services to the UK and Eastern Europe and inducting India’s first Airbus A321XLR aircraft. The fleet size grew to 441 aircraft as of March 31, 2026. The company also faced regulatory scrutiny following operational disruptions in early December 2025, resulting in a penalty of ₹222 million from the Directorate General of Civil Aviation (DGCA) and a requirement to furnish a bank guarantee of ₹50 crore for systemic reforms.

Financial Performance Highlights

What the Numbers Show

The divergence between operational revenue growth and net profit highlights the significant impact of macroeconomic factors on airline profitability. While revenue per available seat kilometer (RASK) decreased by 3.0% to ₹4.99 due to lower yields and load factors impacted by geopolitical tensions, cost per available seat kilometer (CASK) increased by 7.2% to ₹5.00. This margin compression was exacerbated by steep currency depreciation affecting dollar-denominated expenses, such as aircraft lease rentals and maintenance. The company’s adjusted profit, excluding foreign exchange impact and exceptional items, stood at ₹75 billion, indicating that core operational profitability remained relatively stable despite external headwinds.